Confirmation of zero-N behavior in a high gain grid structure at millimeter-wave frequencies

Steven J. Franson, Richard W. Ziolkowski

Research output: Contribution to journalArticle

11 Scopus citations


A multilayer grid structure that has been used previously to create an antenna with high directivity and gain and that has been explained as having a near zero index of refraction is extended to millimeter-wave frequencies. Alternate explanations for the associated phenomena are examined. Further confirmation of this "zero-n" behavior is presented.

Original languageEnglish (US)
Article number4579731
Pages (from-to)387-390
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
StatePublished - Dec 1 2009



  • Antennnas
  • Metamaterials
  • Millimeter waves
  • Zero-N

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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